Quantitative Aptitude - Arithmetic Ability Questions

If tanA -­ tanB = X, then the value of X is

A shop keeper allows 20% discount on the marked price on his articles. Find the marked price of an article for which he charges Rs. 740

The length of a string is 8 feet and 9 inches, which is divided into 3 equal parts. What is the length of each part in inches?

What is the area (in sq cm) of a circle whose circumference is 26.4 cm?

If cosαcosβ=m and cosαsinβ=n,then the value of m2+n2 cos2β is

If sec -5π/4 = x, then the value of x is

When a number is increased by 21, it becomes 114% of itself. What is the number?

Lokesh starts a business with Rs 240000. After 3 months Vishal joins him with Rs 210000. At the end of the year what will be the ratio of their profit?